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-rw-r--r--arch/powerpc/platforms/ps3/Kconfig11
-rw-r--r--include/asm-powerpc/sparsemem.h6
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig
index f023719f645..451bfcd5502 100644
--- a/arch/powerpc/platforms/ps3/Kconfig
+++ b/arch/powerpc/platforms/ps3/Kconfig
@@ -29,4 +29,15 @@ config PS3_DYNAMIC_DMA
This support is mainly for Linux kernel development. If unsure,
say N.
+config PS3_USE_LPAR_ADDR
+ depends on PPC_PS3 && EXPERIMENTAL
+ bool "PS3 use lpar address space"
+ default y
+ help
+ This option is solely for experimentation by experts. Disables
+ translation of lpar addresses. SPE support currently won't work
+ without this set to y.
+
+ If you have any doubt, choose the default y.
+
endmenu
diff --git a/include/asm-powerpc/sparsemem.h b/include/asm-powerpc/sparsemem.h
index 38b1ea3b58f..48ad807a0b8 100644
--- a/include/asm-powerpc/sparsemem.h
+++ b/include/asm-powerpc/sparsemem.h
@@ -9,8 +9,14 @@
* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
*/
#define SECTION_SIZE_BITS 24
+
+#if defined(CONFIG_PS3_USE_LPAR_ADDR)
+#define MAX_PHYSADDR_BITS 47
+#define MAX_PHYSMEM_BITS 47
+#else
#define MAX_PHYSADDR_BITS 44
#define MAX_PHYSMEM_BITS 44
+#endif
#ifdef CONFIG_MEMORY_HOTPLUG
extern void create_section_mapping(unsigned long start, unsigned long end);